In 1979 a ceremony returned the Canal Zone to which Central American country?

"Don't Look Back" (1978) was the follow-up to which New England band's hit debut album? Launched in 1978, Seasat, a companion to Landsat, was the first of what to be dedicated to oceanography? The 1978 film "Superman" was scripted in part by which author of "The Godfather"? "In space no one can hear you scream" was the tagline of which 1979 film? Which 1979 comedy ends with the crucifixion song "Always Look on the Bright Side of Life"? Which Shiite religious leader returned from exile in 1979 to lead Iran's Islamic Revolution? "At first I was afraid, I was petrified" is the opening line of which 1979 hit? In which 1979 comedy does a bankrupt Barbra Streisand decide to manage a boxer?